Johan victor svenson



(No Model.)

J. v. SVENSON VAPOR BURNER FOR PETROLEUM STOVBS.

No. 595,795. Patented Dec. 21, 1897.

ZQIZMWW 1.1, II

UNITED STATES JOHAN VICTOR SVENSON,

OF STOCKI-IOLM, SWEDEN.

VAPOR-BURNER FOR PETROLEUM-STOVES.

SPECIFICATION forming part of Letters Patent No. 595,795, dated December21, 1897.

- Application filed June 12, 1897. Serial No. 640,5 72. (N model.)

To all whom it may concern.- y

Be it known that I, J OHAN VICTOR SvENsoN, a subject of the King ofSweden and Norway, and a resident of Stockholm, Sweden, have inventedcertain new and useful Improvements in Vapor-Burners forPetroleum-Stoves, of which the following is a clear, full, and exactspecification.

This invention relates to a vapor-burner for petroleum-stoves arrangedso as to cause the escaping vapor to be burned silently or at leastwithout appreciable noise, the construction of the burner being such asto make it more efficient and more easily kept clean than other burnersof the same kind. The silent burners already known consist, essentially,of a cup placed above the usual rin -shaped vaporizer and provided witha central funnel, at the middle of which terminates the upper end of atube situated directly above the nozzle through which the vapor escapes,said funnel being surrounded at some distance from it by another funnelor bonnet resting on the bottom of the cup and provided at its loweredge with apertures, through which the vapor escapes, this vapor beingsubsequently ignited, forming an annular flame which projects upward,grazing along the edge of the cup, which shapes the flame. The vaporflowing upward through the tube is compelled by the exteriorbonnet tochange its direction so as to move downward before escaping from theburner for ignition, the absence of noise during the combustion beingdue to this change in the direction of the vapor. Such a burner,however, is not as eflicient as might be desired, owing to the fact ofthe vaporizer being situated below the flame, and consequently theheating of said vaporizer being effected principally by the heatconducted through the metal of the cup. Moreover, in case the liquidheated on the stove boils over this liquid is apt to collect in the cupand here form a coating which it is almost impossible to remove.

In the annexed drawings there is illustrated in Figure 1 a verticalsection, and in Fig. 2

a plan view, of the burner which forms the object of the presentinvention, and the purpose of which is to obviate the difficultiesreferred to.

1 1 are the usual rising-tubes for the oil.

the ring 11.

2 is the horizontal vaporizing-channel or vaporizer, (which is shownannular in the drawings,) 3 the tubes leading to the nozzle 4, and 5 thetube located directly above the nozzle. This tube is attached toasurrounding horizontalmetal disk 6, which extends beyond theburner-tubes 1 3. The tube 5 is surrounded at some distance from it by abonnet 7, the top of which reaches above the upper orifice of the tube 5and is closed, for instance, by a cap 8, so as to be more easilyaccessible for cleaning. The lower edge of this bonnet 7 is situated ata slight distance above the disk 6 and is fixed to a second horizontalmetal disk 9, which also extends beyond the tubes 1 3, terminating,however, a little inside the circumference of the disk 6. The two metaldisks 6 and 9 are joined in such a manner that the current of vaporpassing between them can escape only through theannular opening betweentheir outer edges, the disks for this purpose being suitably united bymeans of short tubes 10, surrounding loosely the tubes 1 and 3. Finally,there is placed above the annular opening between the disks 6 and 9 aperforated ring 11 for the escape of the vapor, said ring preferablybeing made of rounded cross-section. The vapor rushing out through thenozzle flows upward through the tube 5, together with the air sweptalong, passes then downward between the parts 5 and 7 and, continuingits course, horizon tally between the metal disks 6 and 9, finallyescaping through The flame formed is here brought into contact with andcaused to act upon the vaporizer above it, and as a result the latterwill be subjected to a much intenser heat than when located below theflame, the efficiency of the burner consequently being materiallyincreased.

The burner just described dispenses with the cup forming a part of thesilent burners previously known, thus obviating thedisadvantage-referred to in connection with said cup.

It is evident that the vaporizer need not necessarily be of annularshape nor consist of one or more tubes arranged around a centralorifice, for it might consist of a retort or plate provided with aseries of passages. The shape of the vaporizer is quite unessential tothe invention, though that shown in the drawings may be considered tobest answer the purpose.

It is also easily understood that the upper edge of the tube 5 may bemade to reach to approximately the same level as the top of the bonnet 7if the tube be provided at the top with perforations furnishing freepassage for the vapor to the space between the tube and the bonnet.

The burner portion, including the tubes 5 and 7, can be supported in anysuitable way such, for instance, as by the cap 8, resting upon thevaporizing-ring 2.

Having now particularly described and ascertain ed the nature of my saidinvention and in what manner the same is to be performed I declare thatwhat I olai n1 is A vapor-burner comprising the vaporizing chamber, thenozzle,the tubes extending from 20 V J OHAN VICTOR SVEN SON. Witnesses:

I-I. TELANDER,

T. RISBERG.

